CVE-2025-55003

{"id": "CVE-2025-55003", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.7, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 3.6, "exploitabilityScore": 2.1}]}, "published": "2025-08-09T03:15:47.030", "references": [{"url": "https://discuss.hashicorp.com/t/hcsec-2025-19-vault-login-mfa-bypass-of-rate-limiting-and-totp-token-reuse/76038", "tags": ["Not Applicable"], "source": "security-advisories@github.com"}, {"url": "https://github.com/openbao/openbao/commit/8340a6918f6c41d8f75b6c3845c376d9dc32ed19", "tags": ["Patch"], "source": "security-advisories@github.com"}, {"url": "https://github.com/openbao/openbao/security/advisories/GHSA-rxp7-9q75-vj3p", "tags": ["Vendor Advisory"], "source": "security-advisories@github.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-307"}]}], "descriptions": [{"lang": "en", "value": "OpenBao exists to provide a software solution to manage, store, and distribute sensitive data including secrets, certificates, and keys. In versions 2.3.1 and below, OpenBao's Login Multi-Factor Authentication (MFA) system allows enforcing MFA using Time-based One Time Password (TOTP). Due to normalization applied by the underlying TOTP library, codes were accepted which could contain whitespace; this whitespace could bypass internal rate limiting of the MFA method and allow reuse of existing MFA codes. This issue was fixed in version 2.3.2. To work around this, use of rate-limiting quotas can limit an attacker's ability to exploit this: https://openbao.org/api-docs/system/rate-limit-quotas/."}, {"lang": "es", "value": "OpenBao existe para proporcionar una soluci\u00f3n de software que permite gestionar, almacenar y distribuir datos confidenciales, como secretos, certificados y claves. En las versiones 2.3.1 y anteriores, el sistema de autenticaci\u00f3n multifactor (MFA) de inicio de sesi\u00f3n de OpenBao permite aplicar la MFA mediante contrase\u00f1as de un solo uso basadas en tiempo (TOTP). Gracias a la normalizaci\u00f3n aplicada por la librer\u00eda TOTP subyacente, se aceptaron c\u00f3digos que pod\u00edan contener espacios en blanco. Estos espacios en blanco pod\u00edan eludir la limitaci\u00f3n de velocidad interna del m\u00e9todo de MFA y permitir la reutilizaci\u00f3n de c\u00f3digos de MFA existentes. Este problema se solucion\u00f3 en la versi\u00f3n 2.3.2. Para solucionarlo, el uso de cuotas de limitaci\u00f3n de velocidad puede limitar la capacidad de un atacante para explotar esta vulnerabilidad: https://openbao.org/api-docs/system/rate-limit-quotas/."}], "lastModified": "2025-08-12T20:39:40.253", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:openbao:openbao:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "5572B591-02AC-4B8F-8956-FC9A606D7F32", "versionEndExcluding": "2.3.2"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}